\newproblem{lay:4_1_4}{
  % Problem identification
	\begin{large}
	  \hspace{\fill}\newline
    \textbf{Lay, 4.1.4}
	\end{large}
	\\
  \ifthenelse{\boolean{identifyAuthor}}{\textit{Carlos Oscar Sorzano, Aug. 31st, 2013} \\}{}

  % Problem statement
	Construct a geometric figure that illustrates why a line in $\mathbb{R}^2$ not through the origin 
}{
   % Solution
	\begin{center}
		\includegraphics[scale=0.5]{Tema5/lay_4_1_4.eps}
	\end{center}
	In the figure above it is clear that vector $\mathbf{u}$ and $\mathbf{v}$ belong to the line, but $\mathbf{u}+\mathbf{v}$ does not.
}
\useproblem{lay:4_1_4}
\ifthenelse{\boolean{eachProblemInOnePage}}{\newpage}{}
